Global Patent Index - EP 0672525 B1

EP 0672525 B1 19990602 - Apparatus for printing proofs

Title (en)

Apparatus for printing proofs

Title (de)

Vorrichtung zum Drucken von Proben

Title (fr)

Dispositif pour imprimer des épreuves

Publication

EP 0672525 B1 19990602 (EN)

Application

EP 95200544 A 19950306

Priority

NL 9400397 A 19940314

Abstract (en)

[origin: EP0672525A1] The invention relates to an apparatus for printing onto a substrate printing plates manufactured from flexible material, comprising: a frame (2); a forme cylinder (15) mounted in the frame and adapted to receive the printing plate (16); a counter-pressure cylinder (27) mounted in the frame; guide means for carrying the substrate for printing between the forme cylinder (15) and the counter-pressure cylinder (27); drive means for driving the forme cylinder and the counter-pressure cylinder, wherein the drive means are adapted to drive the forme cylinder and the counter-pressure cylinder at a different peripheral speed. Assuming the situation where the forme cylinder is driven at the nominal speed and the flexible printing plate is intended for a forme cylinder with a smaller diameter, the flexible printing plate is fixed on the proof printing machine on a cylinder with a large diameter; stretching of the image of the flexible printing plate for printing is thus less than that taken into account in the manufacture of the flexible printing plate. In order to compensate this the counter-pressure cylinder is driven at a higher speed so that the substrate on which the proof must be made moves more rapidly, whereby the too small stretching of the image of the flexible printing plate for printing is compensated. <IMAGE>

IPC 1-7

B41F 13/00; B41F 5/20; B41F 5/24

IPC 8 full level

B41F 5/20 (2006.01); B41F 5/24 (2006.01); B41F 13/004 (2006.01)

CPC (source: EP US)

B41F 5/20 (2013.01 - EP US); B41F 5/24 (2013.01 - EP US); B41F 13/0045 (2013.01 - EP US); Y10S 101/36 (2013.01 - EP US)

Designated contracting state (EPC)

BE DE DK FR GB IT LU NL

DOCDB simple family (publication)

EP 0672525 A1 19950920; EP 0672525 B1 19990602; DE 69509950 D1 19990708; DE 69509950 T2 19990923; DK 0672525 T3 19991206; NL 9400397 A 19951002; US 5485782 A 19960123

DOCDB simple family (application)

EP 95200544 A 19950306; DE 69509950 T 19950306; DK 95200544 T 19950306; NL 9400397 A 19940314; US 40217895 A 19950313